Plant growth condition monitoring device and method based on unmanned aerial vehicle

Abstract

The invention discloses a plant growth condition monitoring device and method based on an unmanned aerial vehicle. A blue LED array is adopted in an image monitoring module to replace a laser to serve as a fluorescence excitation light source, so that the size and weight of the excitation light source are greatly reduced, and the plant growth condition monitoring device is suitable for being used in the low-load unmanned aerial vehicle; besides, an electron multiplication CCD unit is adopted to collect fluorescence dynamic images of plants at night, and thus both fluorescence two-dimensional distribution information of a whole shooting area and comprehensive fluorescence dynamic attenuation information can be obtained. According to the plant growth condition monitoring device and method, the unmanned aerial vehicle flies along a path planned in advance and hovers at a designated shooting site, meanwhile, the fluorescence dynamic images are shot, and the unmanned aerial vehicle returns automatically after flying along the path planned in advance. Leaf dark adaptation is not needed, and thus measurement time is shortened; besides, in-situ measurement of plants is achieved, and thus the physiological growing state of plants can be reflected more accurately.

Description

Technical field [0001] The invention relates to the technical field of plant monitoring, in particular to a plant growth condition monitoring device and method based on an unmanned aerial vehicle. Background technique [0002] In recent years, with the accelerated development of modern science and technology and industrialization, agricultural production has made unprecedented achievements. However, the high yield of traditional agriculture comes at the expense of large amounts of resources and environmental benefits. Faced with many problems such as environmental degradation, resource shortage, and growing population, we must fully realize agricultural modernization, digitalization, and refinement. [0003] The light energy absorbed by plant chloroplasts is used in three parts, one part is used for photosynthesis, one part is converted into heat and energy consumption is dissipated, and the remaining part emits chlorophyll fluorescence after about 2% of the energy is absorbed. St...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of monitoring plant growth status through satellites or airborne equipment in the prior art, which are greatly affected by weather, long data transmission cycle, and high cost.

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